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    THIS EXAMPLE WAS DOWNLOADED FROM https://echarts.apache.org/examples/zh/editor.html?c=doc-example/tutorial-styling-step5
-->
<!DOCTYPE html>
<html style="height: 100%">
<head>
    <meta charset="utf-8">
</head>
<body style="height: 100%; margin: 0">
<div id="container" style="height: 100%"></div>

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<script type="text/javascript">
    var dom = document.getElementById("container");
    var myChart = echarts.init(dom);
    var app = {};

    var option;

    option = {};

    function loadECharts() {
        if (option && typeof option === 'object') {
            myChart.clear();
            myChart.setOption(option);
            window.addEventListener("resize", () => {
                myChart.resize();
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        }
    };

    function clearECharts() {
            myChart.clear();
            window.addEventListener("resize", () => {
                myChart.resize();
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    };

    loadECharts();

    function setOption(data) {
        option = data;
        loadECharts()
    }
</script>
</body>
</html>
    